I have been using EI as the basis of my daily/weekly dosage program. Currently I mix the following in 2*500ml bottles.
AM
Phosphorus (Dosage) 60ml
Flourish Potassium (Dosage) 25ml
Salpeter [KNO3] (Dosage) 6ml

After the 5 day dosage and 1 day rest I take a sample to the lab. The results can been seen in the last Column marked "LEFT"

My concern is the Calcium and Magnesium. I hardly add any but Lab results state that I have sufficient levels in my tank. Should I add more?

All plants are flourishing but my Ludwugia Repens is not having any joy. The leaves are fairly white and growth have came to a complete standstill. Is it the Salpeter? Shoul I go back to Seacham Nitrogen?

I am also having trouble with Hair Algea and GSA (Greens Spot Algea) Should I increase Seacham Phosphorus dosage? Lights are 06:15-08:15 & 17:15-22:15 7hours in total

I a looking at a cheaper alternative such as Lenolax but did not like the 'other' ingredients. What is your experience with it?

It is also known that Seacham Neutral Regulator do increase the PO4 level in the aquarium. I had 1st hand experience. I recon it is a cheaper option than Phosphorus but how safe is it to premix it with my AM EI mix?

Why are you dosing with Seachem using EI? This must be costing a fortune! EI is designed to provide more than the plants need, 50% wc and repeat. Do this with cheap ferts.

It looks like the only thing you don't dose Seachem is Nitrogen? Why? Dose Seachem as per the bottle. That stuff works brilliantly.

For EI I would dose with the chemicals you get from dischem i.e. Lenolax, salt petre, natures choice no salt etc

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Hi Joshua
Indeed costing a fortune, but by mixing the stuff before hand it does safe time. Keep in mind, I had seacham products and when the Seacham Nitro was finished I replaced it with the Salpeter. I finished theSeacham Phosphorus last week only. When I was at the pharmacy on Tuesday, I was not 100% sure that the Lenolax I was holding in my hand and reading 'Enema Adult' was the correct stuff. In hind sight, it seems to be the right stuff. So I will get it when the Seacham Phosphorus is finish. I am still not convinced that Lenolax is the best option. What other options do I have?

As the rest of my Seacham products is finish I will replace it with cheap ferts.

PS. I have up my Phosphorus dosage and the Ludwigia Repens is looking greener.

I do not dose EI but PPS-pro . The ingrediants stay the same. If you do not want to use Lenolax use Monopotassium phosphate KH2PO4 witch you can buy from Hydroponic.co.za in Durbanville . They call it Hortimix MKP- Bloom Booster.

I do not dose EI but PPS-pro . The ingrediants stay the same. If you do not want to use Lenolax use Monopotassium phosphate KH2PO4 witch you can buy from Hydroponic.co.za in Durbanville . They call it Hortimix MKP- Bloom Booster

------------------------------------IN-------------------------------------------------Recom ---------------------------------Lab Results
Calcium (Ca) -------------------0.280----------------------------------------------10-30ppm-------------------------------29.1ppm
Magnesium (Mg) -------------0.220----------------------------------------------2-5ppm [5-10ppm]--------------------8.38ppm
You guys have not said much about the amount of Ca and Mg I put in. It is way below EI recommondation however, when I test my water at a lab on day 7 I have ample in my water. Should I add more Ca & Mg to my weekly EI Dosage?

@GroenVissie: the paleness usually indicates a nutrient deficiency. Also the 15000K light is not cutting it. I made the same mistake too, you need to change it for either 6500K or the other ones that has been advised.

And it's Seachem, not Seacham - sorry I had to correct your spelling there

This is my EI calculation for my tank, I add x5 into a 2L bottle and it lasts me for a whole month so I don't have to keep on making it every week:

I've just done some googling on nutrient deficiencies and I see it's possibly iron? Take a look at this chart.

By the way, did you add the volume of water to your tank when doing the EI calculations? Because that is a factor towards the calculations of your EI dosing...

I do not dose EI but PPS-pro . The ingrediants stay the same. If you do not want to use Lenolax use Monopotassium phosphate KH2PO4 witch you can buy from Hydroponic.co.za in Durbanville . They call it Hortimix MKP- Bloom Booster

Pieter

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Wow.....its cheap too.
Do you still use Natures Choice No Salt?

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Yes. For Macro's I use K2SO4(natures choice no salt),KNO3(salpeter),KH2PO4(monopotassium phosphate).
For Micro's I use plantex CSM+B.